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Rhode Island Radon Map Shows Test Data by Town

by Margaret Henderson

The State of Rhode Island Department of Health Radon Control Program promotes radon testing and mitigation through outreach and education and manages and maintains a database of radon test results. Approximately one in four homes has levels of radon that exceed the USEPA recommended action level of 4 pCi/L. The Program’s mission is “To protect Rhode Islanders from lung cancer due to radon exposure by ensuring that no homes, schools, or other high priority public buildings have unacceptable radon levels.”

Mapping the residential test results, the Program has created a static map of the percentage of homes tested that exceed the action level showing the patterns of radon exposure in Rhode Island. Results are given for each town by county and the average of all is 3.55 pCi/L. Notably, in Exeter and Richmond (in two counties) more than 50% of tested homes exceeded the action level. Testing was by town and a total of 56,219 samples were included in the mapping through April 18, 2016. Not shown on the map, but as categorized by the USEPA, three counties have the highest potential with the predicted average level greater than 4 pCi/L (Zone1); six counties have predicted averages between 2 and 4 pCi/L (Zone 2) and one county has a predicted average less than 2 pCi/L (Zone 3).

To assist the public with mitigation and testing, the Program provides listings of measurement businesses, mitigation contractors and analytical labs. A brochure on facts about radon is provided through the website at http://health.ri.gov/publications/brochures/SomeFactsAboutRadon.pdf.

For more information about radon in Rhode Island, contact:

Telephone: 401-222-5960